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transmission/tests/libtransmission/copy-test.cc
Charles Kerr a952a0731f
refactor: remove the tr_error** idiom (#6198)
* refactor: remove the tr_error** idiom

* fix: tr_error::message() is only constexpr in c++20 and up

* chore: silence a couple of g++-12 Wshadow warnings
2023-11-04 11:39:41 -05:00

90 lines
2.7 KiB
C++

// This file Copyright (C) 2013-2022 Mnemosyne LLC.
// It may be used under GPLv2 (SPDX: GPL-2.0-only), GPLv3 (SPDX: GPL-3.0-only),
// or any future license endorsed by Mnemosyne LLC.
// License text can be found in the licenses/ folder.
#include <algorithm>
#include <cstdint> // uint64_t
#include <cstring>
#include <string_view>
#include <vector>
#include <libtransmission/crypto-utils.h>
#include <libtransmission/error.h>
#include <libtransmission/file.h>
#include <libtransmission/tr-strbuf.h>
#include <libtransmission/utils.h>
#include "gtest/gtest.h"
#include "test-fixtures.h"
namespace libtransmission::test
{
class CopyTest : public SandboxedTest
{
protected:
void testImpl(char const* filename1, char const* filename2, size_t const file_length)
{
auto const path1 = tr_pathbuf{ sandboxDir(), '/', filename1 };
/* Create a file. */
auto contents = std::vector<char>{};
contents.resize(file_length);
tr_rand_buffer(std::data(contents), std::size(contents));
createFileWithContents(path1, std::data(contents), std::size(contents));
auto const path2 = tr_pathbuf{ sandboxDir(), '/', filename2 };
/* Copy it. */
auto error = tr_error{};
EXPECT_TRUE(tr_sys_path_copy(path1, path2, &error));
EXPECT_FALSE(error) << error;
EXPECT_TRUE(filesAreIdentical(path1, path2));
/* Dispose of those files that we created. */
tr_sys_path_remove(path1);
tr_sys_path_remove(path2);
}
private:
static uint64_t fillBufferFromFd(tr_sys_file_t fd, uint64_t bytes_remaining, char* buf, size_t buf_len)
{
memset(buf, 0, buf_len);
size_t buf_pos = 0;
while (buf_pos < buf_len && bytes_remaining > 0)
{
uint64_t const chunk_size = std::min(uint64_t{ buf_len - buf_pos }, bytes_remaining);
uint64_t bytes_read = 0;
tr_sys_file_read(fd, buf + buf_pos, chunk_size, &bytes_read);
EXPECT_LE(buf_pos + bytes_read, buf_len);
EXPECT_LE(bytes_read, bytes_remaining);
buf_pos += bytes_read;
bytes_remaining -= bytes_read;
}
return bytes_remaining;
}
static bool filesAreIdentical(std::string_view filename1, std::string_view filename2)
{
auto contents1 = std::vector<char>{};
auto contents2 = std::vector<char>{};
return tr_file_read(filename1, contents1) && tr_file_read(filename2, contents2) && contents1 == contents2;
}
};
TEST_F(CopyTest, copy)
{
char const* filename1 = "orig-blob.txt";
char const* filename2 = "copy-blob.txt";
auto const random_file_length = 1024 * 1024 * 10;
testImpl(filename1, filename2, random_file_length);
}
} // namespace libtransmission::test